Regulator



March 41.o, 1925- v. D. CARROLL REGULATOR Filed Deq. 9', 1922 y www Patented Mar. 10, 1925.

UNITED STATE vINcEn'r D. cannoni.,

OF CHICAGO, ILLINOIS.

rusmLA'rOR.

Applicationv )filedy December 9, 1922.y SerialulNoi. 605,956.

To .all whom t 4v,mcg/ concer/n,

Beit known that 1,l ViNcnN'r D. CAnnoLL, a citizenL of the United IStates, residing at Chicago, in :the county of ,Cook and State of nlinqis'..hare invented certain- .neii and` .use ful Improvements .in Regi11et10-1f0f,'iihfh the following is aspecication. l

This invention relates tomregullators, and hasespecial reference to. fuelgal egulators. Onebfthe :objects ot the,inverntion;isI Vto provide an improved .regulatoi5 for control lingy a fluidfuel to niaiilitain` 1 /'substantially constant i, pressure, in Aa .containerI` to `7vvhich heat, producedgby; coinbustionotthe flui'd filet iS .applied-v A special object iste provide ,a reliable, accurate, compact and inexpensive regulator to control they heat applieldto ycoffeeurns, such as used inirestaurantshotels.and fthe like..l i

Another object is to provide Va .l deviceV to regulate fluid-fuel and sa'e-guardingnieans to prevent liquid, steam and condensed'steain .fitroml reaching the ffluid-fuel. conduits or containing chambers,

Another object is the` provision of a pressure `safety valve and auvent and liquid discharge valve,- attached to the.,v device Ito sateguald the container andthe regulator! Other, obj elet-s kand advantagesfyvillfreadily appeary ,toynerspneld iii' tlaft 'ffll a consi `lera/tion ,ot the `V'toll oii'liiifgfl description when taken ,ILCQIli friction wthtb Clrawg forming a part hereof,'jvlierei'nzzf' Fig. 1"` is aJ sidel elevation of the device, shovinetpaltiil Sefe Fig. v 2, ils an*4 enl rgedncentral section of Fig. 1 taken onlline'24-2v/o'f Fig. '3'.y

Figz is a section taken online 3T3 of Fg'g.

In` all the viewsv the same referencecharacters indicate; corresponding parts.

The present inyention isf improvement of the device disclosed in an earlier Patent No. 1,384,5-5`et` granted'fto me Julyv 12, r1921. In af-manner, generally similar to the dev ice disclosed inthe aforesaid patent, the

present/regulator lprovides a` fluid'contrjolled valve operable by variable pressure for regulating the supplyy of the heating medium to the burner of the container, Vthe yielding meansy controlling the fluid-'fuel being affect-V ed by pressure Within lthe container in such manner that increase of pressure diminishes the flow of fuel to the burner and decrease ot pressure increases the volume of fuel supwhich, is to be heated fluid fuehjby a pipe dotted linesl 'merely to indicate, its "p'sition in thefoppositejjyvalliof the 'chamber 6.,

Chambers 9fand 10 are separable a float valve 11 operablepby` a oyat 12." Another chamber 13 is' normallyin communieation with chamber `6l through openings 1'4" *andl and valveportlf" 1" I' Chamber 9' is closed by a screw plug 17. i

Chamber `18 is connect`ed" `to chamberl' by a U-shapepipe 19,' which inaybeof aluminum7 steel or like material', unaffected 'by mercury; A

The `fuel chamber 18 contains a float 2O having4 an: upwardly 'extending `stem"21,

which' carries avalve 22 and :which closes raised. The altitudeot the valve'20'is determined lby the l pressure' y'Within the' container with jvihich the` regulator Yis connected.

A fuel fl'uidor liquid-l source is connected to the device by an inlet pipe 2li andthe'bu-rner byfthe outlet. pipe 25.

The tube 19 is to be lled by mercury 26, or the like, and a portionofmercu'ryis conta'inedin chambers 13 and 18.

' Aplunger, 27 having longitudinally eX- tending grooves 28 is connected't'o a threaded'stleni'29/ and is vertically Vmovable to vary the'hea'd 'of the'mercury in the chamber 18 as a means for adjusting the 'fuel valve 22. The stem 29 is threaded into the plug 30 so that the plunger may be held `at any adjusted position.

'A vsafety vali/e731, to open automatically upon occasion 'of excessive'pressureiin cham berk B' vconsists ot theluted Wei'g'l'it 32 held seated by the iniiuence of gravity, is connected to chamber 6 by a pipe There is a central bore Se thru valve 32 '60 to be heated by the fluid-fuel controlled normally closed by valve thru the influthereby, comprising a casing having three ence of spring 36. to the casing 31 to retain vthe valves in place.

y The valve 32 will open upon occasion of abnormal pressure in chamber 6 and valve 35 vWill open upon occasion of subnormal pressure due to condensation of vapor or steam in chamber 6.

A vent valve structure 38, such as used on radiators and the like in steam heating systems, is connected to chamber 6 in an opening indicated by dotted lines 39, but in this instance in the opposite side ofthe wall, as shown in Fig. 1. This vent structure contains an expansible member 410, its upper end fixedV to a vertically adjustable screw 41, its lower end forming a valve l2 to close the port 43 when steam or heated vapor raises the temperature of the member 40.

In the operation of the device pressure from chamber 6 is communicated to chamber 13 thru the openings 14 and16, this depresses the mercury in chamber 13 and raisesit .in chamber 18, thus raising the float 2() and partially closing the ports 23 by the valve 22, thus restricting the flow of gas thru the pipe 25 tothe burner (not shown). When pressure in chamber 6, and the container to which it is connected, is decreased, the mercury in chamber 13 will rise and correspondingly fall in chamber 18, thus opening the fuelv valve to a greater degre and supplying -more gas to the burner.

In the event that-Water or other liquid Ashould find its wayinto chamber 6, it will flow into chamber 10, but before Ait can get into chamber 9 the float 12 will close the valve ports 15 and shut olf communication with chamber 13, hence water cannot be admitted into the chamber containing mercury.

To vary the pressure to be maintained in chamber 6 the plunger 27 may be raised or lowered.

IVhile I have herein shown and described a single embodiment of my invention itis manifest that changes may bek made therein within the spirit and scope of the appended claims. l

For convenience of claim drafting I have called chamber 18 the first chamber; cham ber 6 the second chamber' and chamber 13 the third chamber.-

Having described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A fuel regulator, for maintaining subl stantially constant pressure in a container A cap 37 is threaded-intercommunicating chambers, the first chamber having a float controlled valve to Avary the flow of fuel therethrough and'havinga gas inlet and outlet pipe connected thereto; the second chamber for connection to a container tov be heated by the fuel controlled by the aforesaid valve; the third chamber connected thru ports to the second chamber' andV connected tothe rst chamber by a conduit containing a mobile fluid and a float valve controlling` the connection between the second and third chambers. Y

2. A fuel regulator, for maintaining substantially constant pressure in a container to be heated by the fluid-fuel controlled thereby comprising a casing having communicating chambers, the first chamber hav ing al float-controlled valve arranged to vary the vflow of fuel and having an inlet and an outlet pipe connected thereto; the second chamber, for connection to a chamber to be heated by the controlled fuel; the thi-rd chamber connected thru ports to the second chamber; a float valve for controlling said ports when the second chamber is partially filled with Water, to close communication between the second and third chambers; a

conduit between the first and third chamber; a mobile liquid in the conduit partially filling first and third chamber and' ardisplacing plunger in the third chamber movable into said liquid to vary the head thereof in the first chamber. Y

3. A fuel regulator for maintaining substantially constant pressure in aV container to be heated by fuel controlled thereby com prising a casing having three parallel cye lindrical chambers, the first and third chambers connected at their bottomends by a conduit; a mobile liquid filling the conduit and partially filling v the first and third chambers; a float in the first chamber; a.

a safety valve connected thereto and a plunger in the third chamber to control'the quam tity of said mobile fluid in the rstchamber, thereby to vary the control of fluid fuel by said fuel valve.

In testimony whereof I hereunto subscribed my name.

VINCENT D. CARROLL. 

